"Every year in autumn and winter, amazing Starling formations can be seen in parts of Europe including South England, Denmark and France. During the cold months, the birds become highly gregarious and turn into huge flocks of highly variable size." more; http://blog.flickr.net/en/2012/03/10/starling-moot-in-europe/
A murmuration of starlings over Gretna - Migrating starlings visit Gretna in Scotland twice a year, in February and November, and flocks of thousands of the birds form shape-shifting patterns in the sky. It is unclear why or how they perform this autumnal aerial acrobatic display.
The best early-modern European picture of a hippopotamus comes from the hand of the celebrated Baroque painter Pieter Paul Rubens. Until 1800, this 1616 painting remained the only realistic image of this fearsome animal to be produced north of the Mediterranean.